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/*****
* texfile.h
* John Bowman 2003/03/14
*
* Encapsulates the writing of commands to a TeX file.
*****/
#ifndef TEXFILE_H
#define TEXFILE_H
#include <fstream>
#include <iomanip>
#include <iostream>
#include "common.h"
#include "pair.h"
#include "bbox.h"
#include "pen.h"
#include "util.h"
#include "interact.h"
#include "path.h"
#include "array.h"
#include "psfile.h"
#include "settings.h"
#include "process.h"
namespace camp {
const double tex2ps=72.0/72.27;
const double ps2tex=1.0/tex2ps;
template<class T>
void texdocumentclass(T& out, bool pipe=false)
{
if(settings::latex(settings::getSetting<string>("tex")) &&
(pipe || !settings::getSetting<bool>("inlinetex")))
out << "\\documentclass[12pt]{article}" << newl;
}
template<class T>
void texuserpreamble(T& out,
mem::list<string>& preamble=processData().TeXpreamble)
{
for(mem::list<string>::iterator p=preamble.begin();
p != preamble.end(); ++p)
out << stripblanklines(*p);
}
template<class T>
void texfontencoding(T& out)
{
if(settings::latex(settings::getSetting<string>("tex"))) {
out << "\\makeatletter%" << newl
<< "\\let\\ASYencoding\\f@encoding%" << newl
<< "\\let\\ASYfamily\\f@family%" << newl
<< "\\let\\ASYseries\\f@series%" << newl
<< "\\let\\ASYshape\\f@shape%" << newl
<< "\\makeatother%" << newl;
}
}
template<class T>
void texpreamble(T& out, mem::list<string>& preamble=processData().TeXpreamble,
bool ASYalign=true, bool ASYbase=true)
{
texuserpreamble(out,preamble);
string texengine=settings::getSetting<string>("tex");
if(ASYbase)
out << "\\newbox\\ASYbox" << newl
<< "\\newdimen\\ASYdimen" << newl
<< "\\long\\def\\ASYbase#1#2{\\leavevmode\\setbox\\ASYbox=\\hbox{#1}"
<< "\\ASYdimen=\\ht\\ASYbox%" << newl
<< "\\setbox\\ASYbox=\\hbox{#2}\\lower\\ASYdimen\\box\\ASYbox}" << newl;
if(ASYalign)
out << "\\long\\def\\ASYaligned(#1,#2)(#3,#4)#5#6#7{\\leavevmode%" << newl
<< "\\setbox\\ASYbox=\\hbox{#7}%" << newl
<< "\\setbox\\ASYbox\\hbox{\\ASYdimen=\\ht\\ASYbox%" << newl
<< "\\advance\\ASYdimen by\\dp\\ASYbox\\kern#3\\wd\\ASYbox"
<< "\\raise#4\\ASYdimen\\box\\ASYbox}%" << newl
<< settings::beginput(texengine)
<< "{#5\\wd\\ASYbox 0pt\\dp\\ASYbox 0pt\\ht\\ASYbox 0pt\\box\\ASYbox#6}"
<< settings::endput(texengine) << "}%" << newl
<< "\\long\\def\\ASYalignT(#1,#2)(#3,#4)#5#6{%" << newl
<< "\\ASYaligned(#1,#2)(#3,#4){%" << newl
<< settings::beginlabel(texengine) << "%" << newl
<< "}{%" << newl
<< settings::endlabel(texengine) << "%" << newl
<< "}{#6}}" << newl
<< "\\long\\def\\ASYalign(#1,#2)(#3,#4)#5{"
<< "\\ASYaligned(#1,#2)(#3,#4){}{}{#5}}" << newl
<< settings::rawpostscript(texengine) << newl;
}
template<class T>
void texdefines(T& out, mem::list<string>& preamble=processData().TeXpreamble,
bool pipe=false)
{
if(pipe || !settings::getSetting<bool>("inlinetex"))
texpreamble(out,preamble,!pipe);
if(pipe) {
// Make tex pipe aware of a previously generated aux file.
string name=auxname(settings::outname(),"aux");
std::ifstream fin(name.c_str());
if(fin) {
std::ofstream fout("texput.aux");
string s;
while(getline(fin,s))
fout << s << endl;
}
}
texfontencoding(out);
string texengine=settings::getSetting<string>("tex");
if(settings::latex(texengine)) {
if(pipe || !settings::getSetting<bool>("inlinetex")) {
out << "\\usepackage{graphicx}" << newl;
if(!pipe) out << "\\usepackage{color}" << newl;
}
if(pipe)
out << "\\begin{document}" << newl;
} else if(settings::context(texengine)) {
if(!pipe && !settings::getSetting<bool>("inlinetex"))
out << "\\usemodule[pictex]" << newl;
} else {
out << "\\input graphicx" << newl;
if(!pipe)
out << "\\input picture" << newl;
}
}
template<class T>
bool setlatexfont(T& out, const pen& p, const pen& lastpen)
{
if(p.size() != lastpen.size() || p.Lineskip() != lastpen.Lineskip()) {
out << "\\fontsize{" << p.size() << "}{" << p.Lineskip()
<< "}\\selectfont\n";
return true;
}
return false;
}
template<class T>
bool settexfont(T& out, const pen& p, const pen& lastpen, bool latex)
{
string font=p.Font();
if(font != lastpen.Font() || (!latex && p.size() != lastpen.size())) {
out << font << "%" << newl;
return true;
}
return false;
}
class texfile : public psfile {
bbox box;
bool inlinetex;
double Hoffset;
public:
string texengine;
texfile(const string& texname, const bbox& box, bool pipe=false);
~texfile();
void prologue();
void epilogue(bool pipe=false);
void setlatexcolor(pen p);
void setpen(pen p);
void setfont(pen p);
void gsave();
void grestore();
void beginspecial();
void endspecial();
void beginraw();
void endraw();
void writepair(pair z) {
*out << z;
}
void miniprologue();
void writeshifted(path p, bool newPath=true);
double hoffset() {return Hoffset;}
// Draws label transformed by T at position z.
void put(const string& label, const transform& T, const pair& z,
const pair& Align);
void beginlayer(const string& psname, bool postscript);
void endlayer();
};
} //namespace camp
#endif
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